Donald Trump’s decision to slap tariffs on global trade has sent the world reeling. Stock markets have tanked. Gloomy economists have hit the airwaves. Governments, their backs against the wall, have responded with either stoic resignation or threats of revenge. But it’s business owners who find themselves at the centre of the storm. Steve in Boston, USA, runs a company whose flagship product contains three Chinese parts. He’s concerned about the effect tariffs will have on his business and others at home. We also hear from business owners in Lesotho, India, Italy and Germany covering industries ranging from steel and spices to cheese and beer.